Design of an Internal Antenna with Near-Omnidirectional H-Plane Radiation Pattern over Ultra-wide Bandwidth

ETRI Journal

关键词: internal antenna;    radiation patterns;    omnidirectional;    Ultra-wideband (UWB);   

Others  :  1185989
DOI  :  10.4218/etrij.10.0109.0271

【 摘 要 】

In this paper, an ultra-wideband internal antenna for use in mobile applications is proposed. The proposed antenna has symmetrical bi-arm structures printed on the top and bottom of the substrate, and it occupies a compact area of 10 mm × 10 mm × 1 mm. The designed antenna has an impedance bandwidth from 3 GHz to 12 GHz and near omnidirectional radiation patterns over the frequency band of interest. The group delay between two antennas fabricated using the proposed design is less than 0.8 ns, and the maximum gain variation is about 3.16 dB.

   

【 参考文献 】

• [1]Z.N. Chen, Antennas for Portable Devices, Singapore, Wiley, 2007.
• [2]F. Nekoogar, Ultra-wideband Communications: Fundamentals and Applications, US, Prentice Hall, 2006.
• [3]S.B.T. Wang, A.M. Nikenjad, and R.W. Brodersen, "Circuit Modeling Methodology for UWB Omnidirectional Small Antennas," IEEE J. Sel. Areas Commun., vol. 24, no. 4, Apr. 2006, pp. 871-877.
• [4]L.T. Chang and W.D. Burnside, "An Ultrawide-Bandwidth Tapered Resistive TEM Horn Antenna," IEEE Trans. Antennas
• [5]M. Kanda, "Transients in a Resistively Loaded Linear Antenna Compared with Those in a Conical Antenna and a TEM Horn," IEEE Trans. Antennas Propag., vol. 28, no.1, Jan. 1980, pp. 132-136.
• [6]P.E. Mayes, "Frequency-Independent Antennas and Broad-Band Derivatives Thereof," Proc. IEEE, vol. 80, no. 1, Jan. 1992, pp. 103-112.
• [7]S.S. Sandler and R.W.P. King, "Compact Conical Antennas for Wide-Band Coverage," IEEE Trans. Antennas Propag., vol. 42, no. 3, Mar. 1994, pp. 436-439.
• [8]C.W. Harrison Jr. and C.S. Williams Jr., "Transients in Wide-Angle Conical Antennas," IEEE Tran. Antennas Propag., vol. 13, no. 2, Mar. 1965, pp. 236-246.
• [9]N.P. Agrawall, G. Kumar, and K.P. Ray, "Wide-Band Planar Monopole Antenna," IEEE Trans. Antennas Propag., vol. 46, Feb. 1998, pp. 294-295.
• [10]K.L. Wong, T.C. Tseng, and P.L. Teng, "Low-Profile Ultra-wideband Antenna for Mobile Phone Applications," Microwave and Optical Technology Lett., vol. 43, no. 1, Oct. 2004, pp. 7-9.
• [11]A. Zhao and J. Ollikainen, "Half-Sized Vertical Monopole Ultra-wideband (UWB) Antenna for Mobile Applications," IEEE ICUWB, Sept. 2007, pp. 497-501.
• [12]Z.N. Chen, "Novel Bi-arm Rolled Monopole for UWB Applications," IEEE Trans. Antennas Propag., vol. 53, no. 2, Feb. 2005, pp. 672-677.
• [13]X.H. Wu and A. Kishk, "Study of an Ultrawideband Omnidirectional Rolled Monopole Antenna with Trapezoidal Cuts," IEEE Trans. Antennas Propag., vol. 56, no. 1, Jan. 2008, pp. 259-263.
• [14]X.H. Wu and A.A. Kishk, "An Ultra-wideband Omnidirectional Monopole Antenna," Antenna Technology: IWAT, Mar. 2007, pp. 345-348.
• [15]Ansoft High Frequency Structure Simulator (HFSS), Ver. 11.0, Ansoft Corporation.
• [16]Y.J. Cho et al., "A Miniature UWB Planar Monopole Antenna with 5-GHz Band-Rejection Filter and the Time-Domain Characteristics," IEEE Trans. Antennas Propag., vol. 54, no. 5, May 2006, pp. 1453-1460.
• [17]Agilent Technologies, Service Guide Agilent Technologies 8719ET/20ET/22ET 8719ES/20ES/22ES Network Analyzers, Aug. 2006.
• [18]Do-Hoon Kwon, "Effect of Antenna Gain and Group Delay Variations on Pulse-Preserving Capabilities of Ultrawideband Antennas," IEEE Trans. Antennas and Propagation, vol. 54, no. 8, Aug. 2006, pp. 2208-2215.
• [19]J.S. Hong and M.J. Lancaster, Microstrip Filters for RF/ Microwave Application, Wiley, USA, 2001.